http://www.esrl.noaa.gov/gmd/webdata...dlfullsize.jpg

So,anyone else care to explain to students the dynamic behind this event and why,in 6 months time,the Sun will slowly move out of the picture as roughly 6 months of darkness envelops the location.

It is nothing short of disgraceful that the polar day/night cycle and its dynamical cause is omitted from the curriculum of students and the consciousness of the wider population by virtue that the magnification crowd can't get their act together and are stuck in the late 17th century attempt to bundle daily and orbital dynamics off a rotating celestial sphere.